Factorise each of the following.

a) 6rt - 3st + 6ru - 3su

b) 7mn - 21n + 35m - 105

c) 64 - 8j + 16k - 2jk

d) 3a^2 - a^2b + 3ac - abc

e) 5x^2 + 10x + x^2y + 2xy

f) 2m^2 - m^2n + 2mn - mn^2

A bank is getting a new marble floor that is green and white. The width of the floor is 88 feet. A white marble triangle will extend 1010 feet into the area. White marble costs $9.50$9.50 per square foot. How much will the white marble section cost?

What is the length of the shortest side of a triangle that has vertices at (4,6), (-2,0), and (-6,3) ?

Which of the following is equivent to 5455 cm3? A).5455L B) 5.455 L c) 54.55 L D) 5455 L

What is the difference between 28.935 and 13.011, to the nearest integer?

The heights of 6 randomly selected students in a classroom are 64 inches, 73 inches, 67 inches, 70 inches, 69 inches, and 65 inches. What is the mean of the students' heights?

For what values of x is x2-36=5x true? answer is b on edge

In circle T, A. 3 B. 4 C. 6 D. 7

What is the value of x when the Richter scale rating is 3.8?

There are six marbles in a bag, three are green and Three are yellow. If you draw marble, replace it, and then draw another what is the probability of choosing two yellow marbles

Simplify the following questions: 7f-5 (4f+9)